<div class="live-chat-area">
  <div class="msg-overflow">
    <ul class="msg-list">
    </ul>
  </div>
  <div class="textbox clearfix">
    <div class="send-con">
      <textarea class="send-txt" placeholder='在这里聊天吧'></textarea>
    </div>
    <div class="send-btn">发送</div>
  </div>
</div>